Claro, aunque te corregí las primeras que ya hiciste porque algunas están mal.
Part 1
1. was
2. were
3. was
4. were
5. was
Part 2
1. Juan and Denise weren't in the mountains last year.
2. My parents were at the house last week.
3. It wasn't sunny at the beach.
4. Was the art museum fun?
5. Jeff was on the tour of the historic center.
Part 3
Last month I went to Cancun, Mexico with my family. It is a city on the Yucatan Peninsula with great beaches! On the first day we went to the beach to go swimming, but there was a lot of seaweed. So we went to the pool, but there were too many people there! We really wanted to swim, so we swam anyway. After that, we wanted to eat Italian food, but there wasn't any Italian restaurant nearby, so we went to eat seafood, but there was only fried fish on the menu! The next day we went to the art museum, but it was closed. There wasn't anywhere nearby to visit, so we went back to the hotel. Luckily back at the hotel there was a beach party, so we had a lot of fun!
